• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for cooling an indoor environment in a house by means of a cooling system, and a cooling system for cooling an indoor environment. The cooling system comprises a cooling storage in the form of a rock storage, a cooling system for cooling the indoor environment and a cooling medium for transporting cooling. The cooling system has only one cooling mode and only one charging mode. In cooling mode, the refrigerant is cooled with cooling from the rock storage, and the cooling system is fed only with cooling medium that has been cooled only with cooling from the rock storage. In charging mode, the coolant is only cooled with outdoor air and / or ground cooling and the rock storage is only cooled with the coolant that is cooled only by outdoor air and / or ground cooling.
    公开号:SE0950553A1
    申请号:SE0950553
    申请日:2009-07-13
    公开日:2011-01-14
    发明作者:Jonas Graeslund；Gunnar Nordberg
    申请人:Skanska Fastigheter Stockholm Ab；
    IPC主号:
    专利说明:

    102Thus, in many known plants and procedures, there are problems withcomplex systems that often break down, are difficult to repair and that arecomplicated to regulate.
    Summary of the InventionThe object of the present invention is to alleviate at least some ofthe above problems and to achieve an improved conduct and aimproved construction of the kind mentioned in the introduction.
    This object is achieved by the method according to claim 1 andby means of the plant according to claim 15. Advantageous embodiments ofthe invention is stated in the subclaims.
    Thus, the invention is realized according to a first aspect by means of aprocedure for cooling the indoor environment in a house using a cooling system.
    The cooling system comprises a cooling storage in the form of a rock storage, a cooling systemfor cooling the indoor environment and a cooling medium for transporting cold, whereinthe cooling system has only one cooling mode and only one charging mode.
    The process comprises the steps of, in cooling mode, cooling the refrigerant with cooling fromthe rock storage, feed the cooling system only with coolant cooled only withcooling from the rock storage, and that, in charging mode, cooling the coolant only withoutdoor air and / or ground cooling, and to cool the rock layer only with the coolant ascooled only by outdoor air and / or ground cooling.
    According to a second aspect of the invention, a cooling system is provided forcooling of the indoor environment in houses, which cooling system has only one cooling mode andonly one charging mode. The cooling system comprises a cooling system, acold storage in the form of a rock storage and a cooling medium for transporting cold.
    The cooling system is arranged so that, in cooling mode, the coolant is exposed to coolingonly from the rock layer for cooling the coolant, the rock layer is connected tothe cooling system for transporting only refrigerant that has been cooled only by the rock storagefrom the rock storage to the cooling system for cooling the indoor environment, and so that, incharging mode, the coolant is exposed to cooling from only outdoor air and / orsoil for cooling the coolant, and the rock layer is connected to that of coolingfrom the outdoor air and / or ground cooled refrigerant only, for transport of only3the refrigerant cooled by cooling from only the outdoor air and / or the groundthe rock layer for cooling the rock layer.
    The invention is thus based on an insight that it is possible to operatea cooling system with a cooling medium that is only cooled by cooling from a rock storage,even if the rock layer has not been actively cooled with anything other than outdoor air and / or ground cooling.
    Thanks to the fact that all the cold in the system thus comes from the rock layer, cold outdoor airand / or cold ground, according to the invention one can completely refrain from cooling machinessuch as heat pumps or air conditioners. Because the inventionfurther in cooling mode working with only one cooling source, namely the cooling storage, isthe plant according to the invention is easier to control and regulate than knownfacilities where cooling machines are to be controlled and made to cooperate withpossible cold from mountains or other. Thus, the invention provides asimpler systems that include fewer complex devices and are easier tosteer.
    The invention relates to cooling of the indoor environment in houses. The term "house" means thatinclude all types of buildings that contain one or more spacesdelimited by floors, walls and ceilings for separation between spaces with differentclimate, which are essentially located above ground and which are mainlyintended for residential or premises, such as commercial premises such asoffice space or business premises. The term "indoor environment" refers to spaces insidethe house and includes, for example, the air inside a room. The term "outdoor air" refers to airlocated outside the house. The term "ground cooling" refers to cooling found in the upper onesthe layers in the ground, such as cold from the ground near the ground.
    The invention comprises a cooling layer in the form of a rock layer, which may beof any kind, such as a borehole bearing or a bearingcomprising one or more cavities.
    According to the invention, cold can be stored in the rock layer in any way, such asfor example in a storage fluid or in the rock itself. The bearing fluid can bearranged in cavities in the rock layer, it can be substantially stationary orarranged to circulate. The bearing fl uiden can be any suitable gas,such as air, or a suitable liquid, such as water with or without additives. Onepossible type of additive is antifreeze such as ethanol. At4storage in rock, the storage fluid can be arranged for transferring cold to itselfthe rock via boreholes.
    According to an embodiment of the invention, the rock layer is a borehole layer therehoses have been placed in the boreholes. In the hoses circulates a bearing fluid in the form ofwater without added antifreeze. An advantage of this is that if the rock layershould leak, then only harmless water leaks out to the environment.
    The invention may comprise a cooling medium of any suitable kindsuch as, for example, a suitable liquid, for example water with or withoutadditives. According to an embodiment of the invention, the refrigerant is water withadditives of antifreeze such as ethanol. This embodiment isadvantageous because the refrigerant then does not freeze as easily when it is minus guardsin the winter and the invention works in cooling mode. Other embodiments therethe refrigerant consists of water without antifreeze are beneficial due tothat they do not significantly affect the environment in the event of a leak and that theyfacilitates operation and maintenance.
    The invention comprises a cooling system. Normally includes the cooling systemseveral different components for transporting the refrigerant from the cooling source to itindoor environment to be cooled. Examples of components in a cooling system according tothe invention are pipelines, hoses or the like for transportingthe refrigerant, pumps for supplying the refrigerant and valves for controllingthe refrigerant to different lines in the refrigeration system and / or regulation of the refrigerantflow, such as speed and volume. The cooling system may also includemeasuring devices for measuring flows and / or temperatures and acontrol device for controlling the cooling system, for example by regulatingthe path and fate of the refrigerant. The control device can control the cooling system so thatdesired cooling of the indoor environment is obtained. This control can be done with orwithout feedback of, for example, temperatures in the indoor environment, the coolanttemperature in the cooling position or other suitable reference values. The cooling systemmay also include an energy source such as a power supply or commodityconnected to mains power for driving pumps, valves or other in the cooling system.
    According to an embodiment of the invention, the cooling system comprises at leasta heat exchanger device. The term "heat exchanger device" means adevice for transferring cold from one medium to another. Usually cooleda first medium of a second medium due to heat being transferred from itfirst medium to the at least initially colder, second medium.
    The heat exchanger device can be of any suitable type, for example ofany per se known construction comprising adjacent pipes withalternating the one and the other medium or metal plates within which a firstmedium flows and which on the outside have contact with a second medium.
    The heat exchanger device may be arranged to transfer cooling between liquids,gases or between a liquid and a gas.
    The invention may comprise a cooling heat exchanger device for transferringcooling from the refrigerant to air for cooling the indoor environment, astorage heat exchanger device for transferring cooling from the storage fluid tothe refrigerant, and / or a charge heat exchanger device for transferring refrigerationfrom the outdoor air to the coolant and / or for the transfer of cooling from the ground tothe refrigerant. In this case, each heat exchanger device may comprise one or more,close or far apart units. For example, canthe charge heat exchanger device comprises a first heat exchanger devicefor transferring cooling from the outdoor air to the coolant in the form of a conventionalheating coil and a second heat exchanger device for transferring cold fromthe ground to the coolant in the form of conduit loops with coolant buried inthe surface layer of the soil. Often the cooling system according to the invention also comprises onea plurality of cooling heat exchanger devices, usually at least onecooling heat exchanger device is located in each room in the house to be cooled, toexample of a cooling heat exchanger device in each office room when the system ismounted in an office property.
    According to the invention, the indoor environment can thus be cooled by means of acooling heat exchanger device that transfers cooling from the coolant directly to the air inthe indoor environment. According to the invention, however, the indoor environment can also be cooledother ways, for example by the refrigerant transferring cooling to walls or othersbodies in the indoor environment. Sometimes these bodies can then in turn be usedfor cooling the air in the indoor environment. It is also possible to soundventilation air pass through a body cooled by the refrigerant such as onecooling heat exchanger device, which may be located in the indoor environment or6separately at a distance therefrom, for cooling the ventilation air before itflows into the indoor environment.
    According to the invention, outdoor air intended as ventilation air can be used forcooling of the refrigerant in charge mode.
    According to an embodiment of the invention, at least parts ofthe cooling system, in particular at least one cooling heat exchanger device, can be dismantledmounted in the house where the indoor environment is to be cooled. This is beneficial becausethe cooling system can then be installed in existing houses and its parts can then easilydisassembled for maintenance or for replacement during thorough rebuildingor renovation _According to the invention, the cooling system has a cooling mode and a charging mode.
    The invention is thus arranged to be able to work in cooling mode for coolingthe indoor environment and in charging mode for charging the rock layer with cooling.
    The invention can be arranged to work in either cooling mode or incharging mode, or in both cooling mode and charging mode at the same time. Usuallythe invention works in cooling mode in summer and in charging mode in winter. INareas where it is hot most of the year and where one therefore alsowishes to cool the indoor environment for large parts of the year, the invention can be incooling mode during the day and in charging mode at night. An advantage of this is that the coldin the rock layer lasts longer. Sometimes it can be much warmer indoors thanoutdoors and then it may be possible that the invention is in cooling mode andcharging mode at the same time.
    According to the invention, the cooling system has only one cooling mode and only onecharging mode. This means that the invention is limited in terms of possibleworking mode in cooling mode and charging mode to the prescribed ones, namely to icooling mode be arranged to cool the indoor environment with cooling from the rock layer asonly cooling source and to be arranged in charging mode to cool the rock layer withcold outdoor air and / or ground cooling as the only cooling source. Within these limitshowever, the present invention covers many different embodiments.
    According to an embodiment of the invention, the cooling system is designed withoutcontrol by means of feedback on the current temperature on itindoor environment to be cooled. Instead, a temperature of the refrigerant is selected asis assumed to provide the desired cooling and cooling medium at such a temperature7fed to the indoor environment to be cooled, for example to acooling heat exchanger device. It may be possible to set up the system so thatthe selected temperature is kept constant. An advantage of this embodiment isthat the system becomes even simpler and more robust thanks to simple control withoutcontrol system including control by means of temperature feedback onthe indoor environment in question. This embodiment is particularly advantageous in houseswith many cooling heat exchanger devices, for example office properties withone or more cooling heat exchanger devices in each room, as you can thendispose of control and measuring equipment in each office room.
    According to the invention, the coolant can be given the selected temperature atin any suitable manner, for example by mixing the refrigerant whichfed for cooling with recycled, heated by the indoor environmentcoolant.
    According to an embodiment of the invention, the predetermined one is selectedthe temperature of the refrigerant fed to the indoor environment for coolingthe same to a minimum of 19 ° C and a maximum of 23 ° C. Thus, one also receivesany cooling heat exchanger device arranged in the housing for coolingthe indoor environment an average temperature of not less than 19 ° C and not more than 24 ° C.
    Because according to the thermodynamics it is not possible to cool anything to onetemperature lower than the temperature of that used for cooling,thus, the indoor environment can never be colder than the selected temperature.
    Thus, with this embodiment, there is advantageously no risk that the cooling becomestoo strong, or in other words, that the indoor environment becomes too cold. This is possibleeven in embodiments that lack feedback. To obtain the desiredcooling effect, a possible cooling heat exchanger device can be dimensionedcorrespondingly larger in area than a conventional one fed with lowertemperatures of the refrigerant in question.
    Another advantage of the relatively high feed temperature ofthe coolant is that the cooling system according to this embodiment is particularly suitable foruse of rock storage as a cooling source. With a high feed temperatureon the coolant, the rock layer can be allowed to heat up to 15 - 16 ° C and stillact as a cooling source for a cooling medium to be cooled to the said 19 - 23 ° C,why there are conditions for the cold in the rock layer to be sufficient throughout the season.8In particular, according to the invention, it is possible to utilize the rock layer when ithas an average temperature above 8 ° C and below 16 ° C, preferablyabove 10 ° C and below 15 ° C.
    Unlike at least embodiments of the invention, they operatemost well-known plants on the market with lower temperaturesrefrigerant (6 - 15 ° C), includes complex control systems with feedback(sometimes even from every room in the house) and must start usingadditional cooling from, for example, cooling machines for cooling the coolant to the desired onelow level already when the rock layer has an average temperature of 8 - 10 ° C.
    According to an embodiment of the invention, the rock layer is not cooled lower in cooling modethan to an average temperature of 5 ° C. Thanks to the cooling system according tothe invention in refrigeration mode can use refrigerant in relatively high temperatures,can a rock layer that initially has one, compared to known rock layersfor well-known plants, high temperature, sufficient throughout the season. An advantage ofthis embodiment is that the rock layer is not cooled to lower temperatures than thatthe mountain naturally has, which is beneficial from an environmental point of view. There is also oneadvantage in terms of the bearing's ability to withstand the cold. Because stored thenhave the same temperature as the surrounding mountain, problems are avoidedwith cooling delicious from the warehouse.
    In this context, it is pointed out that the temperature of the rock layer refers to aaverage temperature. The temperature in the rock layer can vary depending onhow close to the ground surface you measure or how close to the position in the rock layer therethe rock layer interacts with the refrigerant to transfer refrigerant to the refrigerant manmeasures. If the rock layer is of a type that includes boreholes withliquid-filled pipes, the temperature in the rock layer can also vary dependingon how close a borehole is measured. The average temperature thus refers toan average of many different temperatures in the rock layer that are measured in manydifferent, representative positions distributed throughout the rock layer.
    According to an embodiment of the invention, the rock layer is divided into a first anda second sub-rock layer which are separated from each other. This is beneficialbecause the facility then has two separate rock layers available forcooling, which allows you to first use cooling from a firstsub-rock storage and when heated, uses cooling from the other9delberglagret. This ensures that it is possible to obtain cooling from onerock layers with low temperature for a longer time, or in other words, two smaller onesdelberg bearings made it possible to maintain a high cooling effect for longerthan a single large rock layer can. For similar reasons, it is alsoeasier to load two smaller sub-rock layers with cold than a large one. It is alsopossible to divide the rock layer into more than two sub-rock layers.
    According to the invention, the partial rock layer can be completely separate without contactwith each other or be connected and / or connectable to each other.
    The Delberg bearing can be connected to each other so that the coolant enterscontact with both sub-rock layers or so that a layer fl uid flows throughboth sub-rock layers. The partial rock bearings can be connected in series or in parallelwith respect to, for example, the flow path of the refrigerant or storage fluid.
    According to an embodiment of the invention, in cooling mode one ofthe indoor environment heated coolant is connected so that it first passes oneheated sub-rock layer, for example a sub-rock layer with aaverage temperature of 15 ° C, for a first cooling and then continues toa cold partial rock layer that maintains a lower temperature, for example above 5 ° C, foradditional cooling. The coolant passes the sub-rock layers in series.
    Similarly, in storage mode, the refrigerant can first pass itfirst sub-rock layer for cooling thereof, and then flowing further to itsecond sub-rock layer where the coolant, slightly heated by the firstthe sub-rock layer, cools the other sub-rock layer. The refrigerant passesdelberglagren in series. When the first partial rock layer has thus cooled to the desiredtemperature, for example 5 ° C, the refrigerant can be switched past the firstthe sub-rock layer and continue to only cool the other sub-rock layer until itobtains the desired temperature, for example 5 ° C.
    According to another embodiment of the invention, in cooling mode abearing fluid is connected so that it flows from a heated partial rock bearing, tofor example a partial rock storage with an average temperature of 15 ° C, to aother cold partial rock layers that maintain a lower temperature, for example above 5 ° C,for cooling. The bearing fluid flows through the sub-rock bearings in series. The refrigerant isthen arranged to pass the bearing liquid cooled by both sub-rock bearingscooling with cooling from both the first and the second part rock layer. Oncorrespondingly, the storage liquid can be arranged to flow when chargingthrough both sub-rock layers in series or through only one of the sub-rock layers.
    According to an embodiment of the invention, the cooling medium is the same asThe bearing fluid / storage fluid_ In such embodiments is canthe bearing heat exchanger device is dispensed with and the same liquid flows in bothat least parts of the cooling system and in the warehouse.
    Brief description of the drawingsThe invention will be described in more detail below with the aid ofexemplary embodiment and with reference to the accompanying drawing.
    Fig. 1 is a schematic view of the method and the plant according tothe invention according to a first embodiment in cooling mode.
    Fig. 2 is a schematic view of the method and the plant according tothe invention according to the first embodiment in charging mode.
    Fig. 3 is a schematic view of a part of the method and the plantaccording to the invention according to the first embodiment with a first and aother sub-rock layers in cooling mode, both sub-rock layers being cold.
    Fig. 4 is a schematic view of a part of the method and the plantaccording to the invention according to the first embodiment with a first cold anda second hot rock storage in cooling mode.
    Fig. 5 is a schematic view of a part of the method and the plantaccording to the invention according to the first embodiment with a first and aother sub-rock storage charge mode, with both sub-rock layers being hot.
    Fig. 6 is a schematic view of a part of the method and the plantaccording to the invention according to the first embodiment with a first cold anda second hot part bearing layer in charging mode.
    Fig. 7 is a schematic view of the plant according to the invention according to itthe first embodiment.
    Description of preferred embodimentsFigures 1, 2 and 7 schematically show a first embodiment ofthe procedure for cooling the indoor environment and a cooling system for coolingindoor environment according to the invention. The facility includes a11Air treatment unit 1 for outdoor air 2, which in the one shownthe embodiment also functions as ventilation air.
    The air treatment unit 1 is provided with a first heat exchanger device inform of charge heat exchanger device 3.
    A coolant in the form of water with additives of antifreezepasses through the charge heat exchanger device 3 as it circulates in acharging circuit 4. The charging heat exchanger device 3 is in the one shownthe embodiment a heating battery for transferring cooling from the outdoor air 2 tothe refrigerant.
    In the direction of the outdoor air 2 fl fate in the air treatment unit 1 afterthe charge heat exchanger device 3 is a heat exchanger device in the form of aauxiliary cooling heat exchanger device 5 arranged. Auxiliary cooling heat exchanger device 5is in the embodiment shown a heating battery of the same type ascharge heat exchanger device 3. In the auxiliary cooling heat exchanger device 5in winter, cooling is transferred from cold incoming outdoor air 2 to the coolant forpossible cooling of the indoor environment even when the invention is in charging mode.
    In the direction of fate of the outdoor air 2 fl in the air handling unit 1 afterauxiliary cooling heat exchanger device 5 a fan 6 is arranged. Fan 6 drives intakeof outdoor air for cooling the rock storage and intake of outdoor air as ventilation air.
    In the direction of fate of the outdoor air 2 i in the air treatment unit 1 after the fan 6 isa recovery heat exchanger device 7 arranged. INthe recovery heat exchanger device 7 is heated incoming in winterventilation air up by heat from outgoing ventilation air. The outgoingthe ventilation air passes through a heat exchanger device (not shown) in shapeof a heating battery of the same type as the recovery heat exchanger device7, where the hot outflowing ventilation air transfers heat to oneheat-carrying medium. The heat-carrying medium flows in a circuit (noshown) to the recovery heat exchanger device 7 where it transfers heat to itincoming ventilation air 2. Also the recovery heat exchanger device7 is in the form of a heating coil.
    In the direction of the outdoor air 2 fl fate in the air treatment unit 1 afterthe recovery heat exchanger device 7 is a heating element 8 arranged for12additional heating of incoming outdoor air if necessary. Alsothe heating element 8 is in the embodiment shown a heating battery.
    In the flow direction of the outdoor air 2 at the end of the air handling unit 1 is oneheat exchanger device in the form of a ventilation air heat exchanger device 9arranged. The refrigerant can be passed throughventilation air heat exchanger device 9 when circulating in a cooling circuit 10.
    In the embodiment shown, the ventilation air heat exchanger device 9 is onecooling coil for transferring cooling from the cooling medium to incoming ventilation airfrom the outdoor air 2.
    The plant further comprises a cooling layer in the form of a rock layer 11.
    The rock bearing 11 is a borehole bearing and comprises a plurality of boreholes. The boreholesare provided with hoses in which a storage fluid in the form of water without addedantifreeze circulates in a storage circuit 25.
    In the embodiment shown, the rock layer 11 is divided into a firstsub-rock layer 19 and a second sub-rock layer 20, cf. Fig. 3 - 7. Delberglagren19, 20 each comprises a sub-rock bearing circuit (not shown) and two common onesstorage heat exchanger devices 14 (not shown in Figs. 3 - 6) for transferring coldto, or receiving cooling from, the refrigerant.
    The bearing circuit 25 is driven by first and second pumps 12 and includesheat exchanger devices 14 for transferring cold to and receiving coldfrom the refrigerant. The embodiment shown hartväheat exchanger devices 14, but other embodiments may have one thing in commonheat exchanger device 14 for the charging circuit 4 and the cooling circuit 10.
    The plant further comprises a cooling heat exchanger device 13 which ismounted in the house where the indoor environment is to be cooled. The cooling heat exchanger device isin the form of a cooling coil and transfer cooling from the refrigerant to the air inthe indoor environment. Fig. 7 shows how several cooling heat exchanger devices 13 aremounted in office space in a counter property.
    The plant thus comprises a charging circuit 4 where the coolantcirculates from the charge heat exchanger device 3 to one of the bearing circuitsheat exchanger devices 14 and back again. The charging circuit 4 is driven by apump 17.13The plant also includes a cooling circuit 10 from which the coolant circulatesthe heat exchanger device 13 to one of the storage circuitsheat exchanger devices 14 and back again. The cooling circuit 10 has a first branchwhich can be connected to or by the cooling circuit 10. In the first branch 15circulates cooling medium to and from the ventilation air heat exchanger device 9 forcooling of incoming ventilation air by means of the coolant when the systemis in cooling mode. The cooling circuit 10 has a second branch 16 which can be switched on or offthe cooling circuit. In the other branch, coolant flows to and fromthe auxiliary cooling heat exchanger device 5 for transferring cooling from coldincoming outdoor air 2 to the refrigerant (via a heat exchanger device) forpossible cooling of the indoor environment even when the invention is in charging mode.
    The cooling circuit 10 and its branches 15, 16 are driven by pumps 18.
    Finally, the plant comprises a valve device which comprises oneseveral valves for controlling the flow paths of the refrigerant. The facility includesalso a control device (not shown) for controlling the valves, which in itshown embodiment works without feedback of the presenttemperature of the indoor environment to be cooled.
    In the following, the invention will be explained in more detail bydescription of a method for cooling the indoor environment usingthe facility.
    The cooling system according to the invention has only one cooling mode and only onecharging mode. Referring to Figures 1, 3 and 4, the method is describedand the plant's only cooling mode.
    The system is in cooling mode when it is hot outside and cooling offthe indoor environment is desired, which is often during the summer season at leastday time. Then the outdoor air maintains a temperature that is higher than the desired onethe indoor environment.
    First, reference is made to Figure 3 which shows a part of the bearing circuit 25 whenthe invention is in its only cooling mode. At the beginning of the season, both are the firstand the second sub-rock layer is cold and has a temperature of about 5 ° C (naturaltemperature). As shown in Figure 3, at the beginning of the season only that is usedthe second sub-rock layer 20 and the first sub-rock layer 19 are disconnectedthe facility and saved for use later in the season. By14pump 12 is pumped storage water that has passed one ofthe bearing heat exchanger devices 14 (Fig. 1), and there heated when it has cooledthe refrigerant heated by the indoor environment, through a first valve 21 to itthe second sub-rock layer 20. The second sub-rock layer 20 cools the storage water belowits passage through the second sub-rock layer 20. Then flowsthe storage water through an open valve 22 and is forced past the firstthe sub-rock bearing 19 of a closed valve 23. The cooled bearing water flowsthen returned to the storage heat exchanger device 14 for cooling the coolant.
    If the second sub-rock layer, and thus the storage water, has a temperature of° C, the refrigerant is cooled to about 7 ° C in the bearing heat exchanger device 14.
    In this way only of the rock layer, namely of the second sub-rock layer,the cooled refrigerant is then fed to the cooling heat exchanger device 13, cf. fig.1. Before the refrigerant reaches the refrigeration heat exchanger device 13, it is mixed with approx. 7 ° Ccool the refrigerant with part of the refrigerant leftthe heat exchanger device 13 and heated by the indoor environment inthe cooling heat exchanger device 13. The coolant is mixed with so much heated,or in other words, recycled refrigerant that the refrigerant obtains onepredetermined temperature of 20 ° C. This predetermined temperature is maintainedconstant and the amount of recycled refrigerant sometimes adjusted accordinglythe second sub-rock layer 20 is heated. The one cooled by the refrigerantthe heat exchanger device 13 can, depending on how hot the indoor environment is,pour an average temperature of 21 ° C.
    Later in the season, when the second part rock layer is heated up to 13 °,the valve 22 is closed so that the storage water is forced to pass through even the firstdelberglagret 19, cf. Fig. 4. The storage water then passes through the other andthe first sub-rock layer 19, 20 in series. During its passage through the otherthus, the storage water is cooled to a minimum of the temperature itthe second part rock layer holds, in this case 13 ° C. In the beginning, the first holdssub-rock storage 5 ° C, and is able to cool the 13-degree storage water to thistemperature. The 5 ° C cold storage water is able to cool the refrigerant inthe bearing heat exchanger device 14 to about 7 ° C. That way only offthe rock layer, namely of the second sub-rock layer 20 and the firstdelberglagret 19, cooled 7-degree refrigerant then flows on towardsthe heat exchanger device 13 and is given the desired predetermined temperature andcools the indoor environment in the same way as described above with reference toFig. 1.
    Thanks to the cooling heat exchanger is dimensioned for coolingthe indoor environment when it is fed with a temperature of the refrigerant that is above19 ° C and below 23 ° C, the cold storage is not emptied until both the first and the secondthe second sub-rock layer was heated to an average temperature of 15 ° C.
    In the embodiment shown in cooling mode works offThe components of the air handling unit 1, in addition to the fan 6, onlythe ventilation air heat exchanger device 9 and the first branch 15 of the cooling circuit 10 areconnected. Ventilation air heat exchanger device 9 cools incomingoutdoor air 2 intended for ventilation air. The second branch 16 of the cooling circuit is disconnected.
    In the following, with reference to Figures 2, 5 and 6, the procedure of the processand the plant's only charging mode.
    The plant is in charging mode when it is cold outside so that a rock layerwhich is heated during the summer season can be cooled to be able to rebe used next summer season. Usually the facility ischarging mode during the winter season when the outdoor air is colder than thatheated rock layer or colder than the desired temperature of a medcold charged rock storage. Normally, no cooling of the indoor environment is needed.
    First, reference is made to Figure 5, which shows a part of the bearing circuit 25 whenthe invention is in its only state of charge. At the beginning of the winter season has boththe first and the spirit delberg layer 19, 20 are heated and have oneaverage temperature of 15 ° C. In the charge heat exchanger device 3 (fig. 2)the coolant is cooled by the cold outdoor air 2. It is thus only cooled by the outdoor airthe refrigerant is pumped by the pump 17 to a storage heat exchanger device 14 where ittransfer cooling to the storage water. Then it flows from the hot storage waterheated refrigerant eats to the charge heat exchanger device 3 andthus circulates in the charging circuit 4.
    The cooled storage water flows from the storage heat exchanger device 14through an open valve 24 in the valve device to the first partial rock bearing 19.
    During its passage through the first sub-rock layer 19, the storage water cools itfirst delberg layer. Then the storage water flows on to the other16delberg layer 20 and also cools this. The storage water thus passes throughthe first and the second part rock layer 19, 20 in series. Then it flows offthe warm rock layer heated the storage water back tothe bearing heat exchanger device 14 and thus circulates in the bearing circuit 25.
    With a temperature of 2 ° C, the coolant is able to cool the storage water to 5 ° C andthus, the first partial rock layer 19 eventually acquires oneaverage temperature of 5 ° C, which is the temperature at which the rock layer 11naturally holds. Since the second sub-rock layer 20 is cooled with storage water asheated by the first sub-rock layer 19, the second sub-rock layer 20to cool more slowly. Thus, the second sub-rock layer 20 will have onehigher temperature than the desired 5 ° C when the first sub-rock layer 19 reachesthis temperature. Then, with reference to Figure 6, the first is disconnecteddelberglagret 19 lagerkretsen. Storage water cooled by coolant, as in itsturn cooled only by outdoor air in the charge heat exchanger device 3, is then pumpedof a pump 12 past the closed valve 23 and through the open valve22 directly to the second sub-rock layer 20 without passing the firstdelberglagret 19. There, cold storage water at 5 ° C can then cool the otherthe sub-rock layer 20 the remaining degrees to 5 ° C.
    In the embodiment shown in charging mode works offThe components of the air handling unit 1, in addition to kten genuine 6, alsothe auxiliary cooling heat exchanger device 5 for transferring cooling from coldincoming outdoor air 2 to the coolant for cooling a particularly warm indoor environment,for example server room. In the example shown, the second branch of the cooling circuit is thus16 connected in the cooling circuit. Also the recovery heat exchanger device 7 asheats incoming ventilation air with heat from outflowingventilation air is running, as well as heating element 8 for additional heatingof incoming outdoor air 2. The first branch 15 of the cooling circuit andventilation air heat exchanger device 9 are disconnected.
    In the described method and the described device according tothe invention does not use any refrigerant which has been cooled in any other way than thatdescribed. In the described method and the described device according tono cooling machines or air conditioners are used in the invention.
    权利要求:
    Claims (24)
    [1]
    A method for cooling an indoor environment in a house by means of a cooling system comprising a cooling storage in the form of a rock storage, a cooling system for cooling the indoor environment and a cooling medium for transporting cooling, the cooling system having only one cooling mode and only one charging mode, comprising the steps in cooling mode, - cooling the coolant with cooling from the rock storage, - feeding the cooling system only with cooling medium cooled only with cooling from the rock storage, in charging mode, - cooling the cooling medium only with outdoor air and / or ground cooling, and - cooling the rock storage only with the cooling coolant only by outdoor air and / or ground cooling.
    [2]
    The method of claim 1, further comprising the step of feeding in cooling mode in the cooling system to the indoor environment to be cooled refrigerant that maintains a predetermined temperature for cooling the indoor environment without feedback of the present temperature on the indoor environment.
    [3]
    The method of claim 2, further comprising the step of in cooling mode controlling the temperature of the refrigerant to the predetermined temperature by recirculating refrigerant heated by the indoor environment.
    [4]
    A method according to claim 2 or 3, wherein the predetermined temperature of the refrigerant is above 19 ° C and below 23 ° C.
    [5]
    A method according to any one of the preceding claims, wherein the step of cooling the coolant in charge mode only with outdoor air and / or ground cooling comprises the step of cooling the coolant to a temperature of at least 2 ° C, preferably to 2 ° C.
    [6]
    A method according to any one of the preceding claims, further comprising the step of ceasing to cool the rock layer in charge mode when the rock layer has obtained an average temperature of at least 5 ° C, preferably 5 ° C.
    [7]
    A method according to any one of the preceding claims, wherein the step of cooling the refrigerant with cooling from the rock layer in cooling mode comprises the step of cooling the coolant with cooling from the rock layer when the rock layer has an average temperature above 8 ° C and below 16 ° C , preferably above 10 ° C and below 15 ° C.
    [8]
    A method according to any one of the preceding claims, further comprising the step of dividing the rock layer into a first sub-rock layer and a second sub-rock layer separated from the first sub-rock layer.
    [9]
    The method of claim 8, wherein the step of cooling the refrigerant with cooling from the rock storage in the cooling mode comprises the step of cooling the refrigerant with cooling from the second sub-rock storage, and the step of feeding the cooling system only with cooling medium cooled only with cooling from the rock storage, comprising the step of feeding the cooling system only with coolant cooled only with cooling from the second part rock storage.
    [10]
    The method of claim 8, wherein the step of cooling the refrigerant with cooling from the rock layer in cooling mode comprises the step of cooling the coolant with cooling from the second sub-rock layer and with cooling from the first sub-rock layer.
    [11]
    A method according to claims 9 and 10, wherein the step of cooling the cooling medium with cooling from the second sub-rock layer and with cooling from the first sub-rock layer is performed if the second sub-rock layer has an average temperature of over 10 ° C, preferably above 12 ° C.
    [12]
    A method according to any one of claims 8 to 11, wherein the step of cooling the rock layer in charge mode only with the coolant cooled only by outdoor air and / or ground cooling comprises the step of cooling the first sub-rock layer and the second sub-rock layer with the coolant cooled only by outdoor air and / or ground cooling.
    [13]
    A method according to any one of claims 8 to 11, wherein the step of cooling the rock layer in charge mode only with the coolant cooled only by outdoor air and / or ground cooling comprises the step of cooling only the second partial rock layer with the coolant cooled only by outdoor air and / or ground cooling.
    [14]
    A method according to any one of claims 12 and 13, wherein the step of cooling the rock layer in charge mode only with the coolant cooled only by outdoor air and / or ground cooling comprises the step of cooling only the second partial rock layer with the coolant cooled only by outdoor air and / or ground cooling. if the first sub-rock layer has an average temperature of 8 ° C - 10 ° C, preferably 5 ° C. 10 15 20 25 30 19
    [15]
    A cooling system for cooling an indoor environment in a house, which cooling system has only one cooling mode and only one charging mode, comprising a cooling system, a cooling storage in the form of a rock storage, and a cooling medium for transporting cooling, the cooling system being arranged in , the refrigerant is exposed to cooling only from the rock storage for cooling the refrigerant, the rock storage is connected to the cooling system for transporting only refrigerant cooled only by the rock storage from the rock storage to the cooling system for cooling the indoor environment, in Charging mode, the refrigerant is exposed to cooling from outdoor air only and / or soil for cooling the coolant, and the rock layer is connected to the cooling medium cooled only from the outdoor air and / or the ground, for transporting only the cooling medium cooled only from the outdoor air and / or the ground to the rock layer for cooling the rock layer.
    [16]
    A refrigeration system according to claim 15, wherein the refrigeration system comprises a refrigeration heat exchanger device for transferring refrigeration from the refrigerant to air for cooling the indoor environment, which refrigeration heat exchanger device has a predicted average temperature above 19 ° C and below 24 ° C.
    [17]
    Cooling system according to claim 16, wherein the cooling heat exchanger device is arranged to be removably mounted in the indoor environment of the house in question.
    [18]
    A cooling system according to any one of claims 15 to 17, wherein the cooling system comprises a charge heat exchanger device for transferring cooling from the outdoor air to the cooling medium and / or for transferring cooling from the ground to the cooling medium.
    [19]
    A cooling system according to any one of claims 15 - 18, wherein the cooling system comprises a cooling circuit in which the cooling medium in cooling mode circulates from the rock storage to the cooling heat exchanger device and back to the rock storage, and a charging circuit separate from the cooling circuit where the cooling medium in charging mode circulates 20
    [20]
    A cooling system according to any one of claims 15 - 19, wherein the rock storage has an average temperature of above 5 ° C and below 16 ° C.
    [21]
    A cooling system according to any one of claims 15 - 20, wherein the cooling system is arranged to allow cooling mode when the rock storage has an average temperature of above 8 ° C and below 16 ° C, preferably above 10 ° C and below 15 ° C.
    [22]
    A cooling system according to any one of claims 15 to 21, wherein the rock storage comprises a rock storage circuit where storage fluid circulates and a storage heat exchanger device for transferring cooling from the storage fluid to the coolant.
    [23]
    A cooling system according to any one of claims 15 - 21, wherein the rock layer comprises a first sub-rock layer and a second sub-rock layer separate from the first sub-rock layer.
    [24]
    Cooling plant according to 22 and 23, wherein the first sub-storage layer comprises a first sub-storage layer, the second sub-storage comprises a second sub-storage circuit, which first and second sub-storage circuits are connected to the storage heat exchanger device, and wherein the cooling system further comprises a valve device for switching the bearing fluid passes both the first and the second partial storage circuit in series, and a second position, where the first intermediate storage circuit is disconnected so that the storage fluid passes only the second partial storage circuit.
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    同族专利:
    公开号 | 公开日
    SE536313C2|2013-08-20|
    EP2275750B1|2015-11-11|
    DK2275750T3|2016-01-11|
    DK2275750T4|2019-12-16|
    US20110048037A1|2011-03-03|
    PL2275750T5|2020-03-31|
    SE536313E|2016-03-03|
    EP2275750A3|2013-03-27|
    EP2275750A2|2011-01-19|
    HUE026854T2|2016-07-28|
    PL2275750T3|2016-04-29|
    US8745994B2|2014-06-10|
    EP2275750B2|2019-10-02|
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    法律状态:
    2016-06-07| RPOP| Patent has been republished in amended form after opposition|
    优先权:
    申请号 | 申请日 | 专利标题
    SE0950553A|SE536313E|2009-07-13|2009-07-13|A method of cooling comprising a rock layer|SE0950553A| SE536313E|2009-07-13|2009-07-13|A method of cooling comprising a rock layer|
    EP10168284.7A| EP2275750B2|2009-07-13|2010-07-02|Method and device for cooling|
    HUE10168284A| HUE026854T2|2009-07-13|2010-07-02|Method and device for cooling|
    PL10168284T| PL2275750T5|2009-07-13|2010-07-02|Method and device for cooling|
    DK10168284.7T| DK2275750T4|2009-07-13|2010-07-02|PROCEDURE AND UNIT FOR COOLING|
    US12/805,099| US8745994B2|2009-07-13|2010-07-12|Method and device for cooling|
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